100103103 has 6 divisors (see below), whose sum is σ = 144593384. Its totient is φ = 66735396.

The previous prime is 100103071. The next prime is 100103111. The reversal of 100103103 is 301301001.

It is not a de Polignac number, because 100103103 - 2⁵ = 100103071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 11122567 = 100103103 / (1 + 0 + 0 + 1 + 0 + 3 + 1 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100103173) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5561275 + ... + 5561292.

Almost surely, 2^100103103 is an apocalyptic number.

100103103 is a deficient number, since it is larger than the sum of its proper divisors (44490281).

100103103 is a wasteful number, since it uses less digits than its factorization.

100103103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11122573 (or 11122570 counting only the distinct ones).

The product of its (nonzero) digits is 9, while the sum is 9.

The square root of 100103103 is about 10005.1538219060. The cubic root of 100103103 is about 464.3183491470.

Adding to 100103103 its reverse (301301001), we get a palindrome (401404104).

The spelling of 100103103 in words is "one hundred million, one hundred three thousand, one hundred three".